When you divide a difference by 3, you are essentially finding the average difference between two quantities and then dividing that value by 3.
For example, if you have two numbers a and b, and you want to find the difference between them, you would subtract b from a to get a - b. Dividing this difference by 3 would give you:
(a - b) / 3
This expression represents the average difference between a and b, divided by 3.
For instance, if a = 10 and b = 6, then the difference between a and b is 4. Dividing this difference by 3 gives us:
(10 - 6) / 3 = 4 / 3
Therefore, when you divide a difference by 3, you are finding the average difference between two quantities and then dividing that value by 3.